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Loans - Summary of loans (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019 | Sep. 30, 2019
--- | --- | --- | ---
Summary of Loans |  |  |
Total loans - ASU 2016-13 | $ 25,237,815 |  |
Total loans |  | $ 11,375,104 | $ 11,290,147
Less allowance for credit losses | (440,159) | (56,927) | (54,937)
Loans, net | 24,797,656 | 11,313,113 | 11,229,892
Deferred costs | 50,500 |  |
Unamortized Discounts | 110,400 |  |
Accrued interest receivable (AIR) | 97,800 |  |
Acquired credit impaired loans |  |  |
Summary of Loans |  |  |
Total loans |  | 361,846 | 396,032
Less allowance for credit losses |  | (5,064) | (5,318)
Loans, net |  | 356,782 | 390,714
Previous Accounting Guidance [Member] |  |  |
Summary of Loans |  |  |
Less allowance for credit losses |  | (61,991) | (60,255)
Construction and land development |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 1,840,111 |  |
Total loans |  | 1,017,261 | 1,025,387
Construction and land development | Acquired credit impaired loans |  |  |
Summary of Loans |  |  |
Total loans |  |  | 26,930
Consumer Owner Occupied Loans |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 4,311,186 |  |
Total loans |  | 2,706,960 | 2,760,126
Commercial and industrial | Acquired credit impaired loans |  |  |
Summary of Loans |  |  |
Total loans |  |  | 8,112
Other income producing property |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 629,497 |  |
Total loans |  | 346,554 | 361,879
Consumer | Acquired credit impaired loans |  |  |
Summary of Loans |  |  |
Total loans |  |  | 36,812
Other loans |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 7,540 |  |
Total loans |  | 13,892 | 1,457
Commercial loans |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 17,982,997 |  |
Commercial loans | Construction and land development |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 1,157,423 |  |
Commercial loans | Construction and land development | Acquired credit impaired loans |  |  |
Summary of Loans |  |  |
Total loans |  | 25,032 | 26,930
Commercial loans | Commercial non-owner occupied |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 5,936,372 |  |
Total loans |  | 2,323,967 | 2,357,730
Commercial loans | Commercial non-owner occupied real estate |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 4,846,020 |  |
Total loans |  | 2,158,701 | 2,093,795
Commercial loans | Consumer Owner Occupied Loans |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 34,890 |  |
Commercial loans | Real estate | Acquired credit impaired loans |  |  |
Summary of Loans |  |  |
Total loans |  | 130,938 | 149,134
Commercial loans | Commercial owner occupied real estate loan |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 4,846,020 |  |
Commercial loans | Commercial and industrial |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 5,419,120 |  |
Total loans |  | 1,386,327 | 1,261,527
Commercial loans | Commercial and industrial | Acquired credit impaired loans |  |  |
Summary of Loans |  |  |
Total loans |  | 7,029 | 8,112
Commercial loans | Other income producing property |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 581,632 |  |
Commercial loans | Other loans |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 7,540 |  |
Consumer |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 7,254,818 |  |
Consumer | Construction and land development |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 682,688 |  |
Consumer | Consumer Owner Occupied Loans |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 4,276,296 |  |
Consumer | Home equity loans |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 1,347,798 |  |
Total loans |  | 758,020 | 773,363
Consumer | Real estate | Acquired credit impaired loans |  |  |
Summary of Loans |  |  |
Total loans |  | 163,359 | 175,044
Consumer | Other income producing property |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | 47,865 |  |
Consumer | Consumer |  |  |
Summary of Loans |  |  |
Total loans - ASU 2016-13 | $ 900,171 |  |
Total loans |  | 663,422 | 654,883
Consumer | Consumer | Acquired credit impaired loans |  |  |
Summary of Loans |  |  |
Total loans |  | $ 35,488 | $ 36,812

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